Garage door

[Launchbury]

I will be painting my garage door black, currently it is blue (peeling off).

I assume I will need to remove as much as the old blue paint as possible (wire brush, sand paper etc)?

Do I need an undercoat and 1 top coat, or just 1 topcoat, or 2 topcoats?

Thank you.

 

[dcdec]

Remove the flaking paint with a hot air gun.

Then degrease with brush cleaner the stripped areas and then prime with metal primer (try and have it tinted grey if it isnt already).
U/C with dark grey, one coat should be enough and then gloss, lightly abrading between coats and dusting off, in fact vaccum off and damp down the area around the door because black will show up every single speck of dust.

 

[Launchbury]

Will I be able to get away without using a hot air gun? Can't I just scrape the flaking paint off?

Thanks.

 

[dcdec]

You can buy a cheap HA gun for about £15 and watch the paint fly off or do it the hard way scraping and chipping, its a no brainer!!

 

[sparkwright]

I assume we are talking about a metal garage door? Non corrosive metal?
Make sure you do use an appropriate primer first, if you don't the paint WILL peel off.